Finding the Fourth Proportional to 1,998.03, 2,757.24 and 1,113.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,998.03 : 2,757.24 = 1,113.78 : x
2. Step 2: Convert to fraction form
   1,998.03/2,757.24 = 1,113.78/x
3. Step 3: Cross multiply
   1,998.03x = 2,757.24 × 1,113.78
4. Step 4: Simplify right side
   1,998.03x = 3,070,958.77
5. Step 5: Solve for x
   x = 3,070,958.77/1,998.03
6. Step 6: Final answer
   x = 1,536.99